v2.4.0.8

Investments and Fair Value Measurements (Details) (USD $) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 Investment | Jun. 30, 2012 | Jun. 30, 2013 Investment | Jun. 30, 2012 | Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |  |
Amortized Cost | $ 52,679,000 |  |  | $ 52,679,000 |  |  | $ 34,264,000 |
Unrealized Gains (Losses) | (555,000) |  |  | (555,000) |  |  | (269,000) |
Aggregate Fair Value | 52,124,000 |  |  | 52,124,000 |  |  | 33,995,000 |
Cash and cash equivalents | 50,000 |  |  | 50,000 |  |  | 1,150,000 |
Short-term available-for-sale securities | 51,358,000 |  |  | 51,358,000 |  |  | 32,122,000 |
Long-term available-for-sale securities | 716,000 |  |  | 716,000 |  |  | 723,000 |
Aggregate fair value of short-term municipal bonds | 42,100,000 |  |  | 42,100,000 |  |  | 26,100,000 |
Financial assets [Abstract] |  |  |  |  |  |  |  |
ARS | 716,000 |  |  | 716,000 |  |  | 723,000 |
Money market funds | 50,000 |  |  | 50,000 |  |  | 1,150,000 |
Municipal securities | 51,358,000 | [1] |  | 51,358,000 | [1] |  | 32,122,000 | [1]
Foreign currency exchange contracts | 36,000 |  |  | 36,000 |  |  | 952,000 |
Total financial assets | 52,160,000 |  |  | 52,160,000 |  |  | 34,947,000 |
Financial liabilities [Abstract] |  |  |  |  |  |  |  |
Foreign currency exchange contracts | 447,000 |  |  | 447,000 |  |  | 115,000 |
Total financial liabilities | 447,000 |  |  | 447,000 |  |  | 115,000 |
Short-term municipal security funds as a percentage of municipal securities (in hundredths) | 82.00% |  |  | 82.00% |  |  | 82.00% |
Municipal revenue bonds as a percentage of municipal securities (in hundredths) | 11.00% |  |  | 11.00% |  |  | 12.00% |
Municipal general obligation bonds as a percentage of municipal securities (in hundredths) | 7.00% |  |  | 7.00% |  |  | 6.00% |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Interest and dividend income | 160,000 |  | 618,000 | 287,000 |  | 859,000 |  |
Reconciliation of available-for-sale ARS measured at fair value on a recurring basis using Level 3 inputs [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 729,000 |  | 703,000 | 723,000 |  | 700,000 |  |
Total realized / unrealized losses [abstract] |  |  |  |  |  |  |  |
Included in earnings | 0 |  | 0 | 0 |  | 0 |  |
Included in OCI | (13,000) |  | 11,000 | (7,000) |  | 14,000 |  |
Sales and settlements | 0 |  | 0 | 0 |  | 0 |  |
Ending balance | 716,000 |  | 714,000 | 716,000 |  | 714,000 |  |
Number of investments that failed at auction | 1 |  |  | 1 |  |  |  |
Principal amount of failed ARS auction | 1,000,000 |  |  | 1,000,000 |  |  |  |
Basis points (in hundredths) | 3.43% |  |  | 3.43% |  |  |  |
Valuation of Ars after discount has been applied | 700,000 |  |  | 700,000 |  |  |  |
Cost basis | 1,000,000 |  |  | 1,000,000 |  |  |  |
Accumulated Other Comprehensive Income, unrealized gains and losses on available for sale securities [Roll Forward] |  |  |  |  |  |  |  |
Balance, January 1, |  |  |  | (180,000) |  | 135,000 |  |
Other comprehensive income, net of income taxes |  |  |  | (186,000) |  | (27,000) |  |
Balance, June 30, | (366,000) |  | 108,000 | (366,000) |  | 108,000 |  |
Reclassification Out Of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |  |  |
Interest and dividend income | 8,000 |  | 239,000 | 8,000 |  | 239,000 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |  |  |  |  |  |
Financial assets [Abstract] |  |  |  |  |  |  |  |
ARS | 0 |  |  | 0 |  |  | 0 |
Money market funds | 50,000 |  |  | 50,000 |  |  | 1,150,000 |
Municipal securities | 51,358,000 | [1] |  | 51,358,000 | [1] |  | 32,122,000 | [1]
Foreign currency exchange contracts | 0 |  |  | 0 |  |  | 0 |
Total financial assets | 51,408,000 |  |  | 51,408,000 |  |  | 33,272,000 |
Financial liabilities [Abstract] |  |  |  |  |  |  |  |
Foreign currency exchange contracts | 0 |  |  | 0 |  |  | 0 |
Total financial liabilities | 0 |  |  | 0 |  |  | 0 |
Significant Other Observable Inputs (Level 2) [Member] |  |  |  |  |  |  |  |
Financial assets [Abstract] |  |  |  |  |  |  |  |
ARS | 0 |  |  | 0 |  |  | 0 |
Money market funds | 0 |  |  | 0 |  |  | 0 |
Municipal securities | 0 | [1] |  | 0 | [1] |  | 0 | [1]
Foreign currency exchange contracts | 36,000 |  |  | 36,000 |  |  | 952,000 |
Total financial assets | 36,000 |  |  | 36,000 |  |  | 952,000 |
Financial liabilities [Abstract] |  |  |  |  |  |  |  |
Foreign currency exchange contracts | 447,000 |  |  | 447,000 |  |  | 115,000 |
Total financial liabilities | 447,000 |  |  | 447,000 |  |  | 115,000 |
Significant Other Unobservable Inputs (Level 3) [Member] |  |  |  |  |  |  |  |
Financial assets [Abstract] |  |  |  |  |  |  |  |
ARS | 716,000 |  |  | 716,000 |  |  | 723,000 |
Money market funds | 0 |  |  | 0 |  |  | 0 |
Municipal securities | 0 | [1] |  | 0 | [1] |  | 0 | [1]
Foreign currency exchange contracts | 0 |  |  | 0 |  |  | 0 |
Total financial assets | 716,000 |  |  | 716,000 |  |  | 723,000 |
Financial liabilities [Abstract] |  |  |  |  |  |  |  |
Foreign currency exchange contracts | 0 |  |  | 0 |  |  | 0 |
Total financial liabilities | 0 |  |  | 0 |  |  | 0 |
Auction Rate Securities ("ARS"), Greater Than One Year [Member] |  |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |  |
Amortized Cost | 1,000,000 |  |  | 1,000,000 |  |  | 1,000,000 |
Unrealized Gains (Losses) | (284,000) |  |  | (284,000) |  |  | (277,000) |
Aggregate Fair Value | 716,000 |  |  | 716,000 |  |  | 723,000 |
Cash and cash equivalents | 0 |  |  | 0 |  |  | 0 |
Short-term available-for-sale securities | 0 |  |  | 0 |  |  | 0 |
Long-term available-for-sale securities | 716,000 |  |  | 716,000 |  |  | 723,000 |
Money Market Funds, Ninety Days or Less [Member] |  |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |  |
Amortized Cost | 50,000 |  |  | 50,000 |  |  | 1,150,000 |
Unrealized Gains (Losses) | 0 |  |  | 0 |  |  | 0 |
Aggregate Fair Value | 50,000 |  |  | 50,000 |  |  | 1,150,000 |
Cash and cash equivalents | 50,000 |  |  | 50,000 |  |  | 1,150,000 |
Short-term available-for-sale securities | 0 |  |  | 0 |  |  | 0 |
Long-term available-for-sale securities | 0 |  |  | 0 |  |  | 0 |
Municipal Securities Maturing in One Year or Less [Member] |  |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |  |
Amortized Cost | 43,093,000 | [2],[3] |  | 43,093,000 | [2],[3] |  | 26,885,000 | [2],[3]
Unrealized Gains (Losses) | (109,000) | [2],[3] |  | (109,000) | [2],[3] |  | (1,000) | [2],[3]
Aggregate Fair Value | 42,984,000 | [2],[3] |  | 42,984,000 | [2],[3] |  | 26,884,000 | [2],[3]
Cash and cash equivalents | 0 | [2],[3] |  | 0 | [2],[3] |  | 0 | [2],[3]
Short-term available-for-sale securities | 42,984,000 | [2],[3] |  | 42,984,000 | [2],[3] |  | 26,884,000 | [2],[3]
Long-term available-for-sale securities | 0 | [2],[3] |  | 0 | [2],[3] |  | 0 | [2],[3]
Municipal Securities Maturing After One Year Through Three Years [Member] |  |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |  |
Amortized Cost | 2,517,000 | [2] |  | 2,517,000 | [2] |  | 1,345,000 | [2]
Unrealized Gains (Losses) | 2,000 | [2] |  | 2,000 | [2] |  | 7,000 | [2]
Aggregate Fair Value | 2,519,000 | [2] |  | 2,519,000 | [2] |  | 1,352,000 | [2]
Cash and cash equivalents | 0 | [2] |  | 0 | [2] |  | 0 | [2]
Short-term available-for-sale securities | 2,519,000 | [2] |  | 2,519,000 | [2] |  | 1,352,000 | [2]
Long-term available-for-sale securities | 0 | [2] |  | 0 | [2] |  | 0 | [2]
Municipal Securities Maturing Greater Than Three Years [Member] |  |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |  |
Amortized Cost | 6,019,000 | [2] |  | 6,019,000 | [2] |  | 3,884,000 | [2]
Unrealized Gains (Losses) | (164,000) | [2] |  | (164,000) | [2] |  | 2,000 | [2]
Aggregate Fair Value | 5,855,000 | [2] |  | 5,855,000 | [2] |  | 3,886,000 | [2]
Cash and cash equivalents | 0 | [2] |  | 0 | [2] |  | 0 | [2]
Short-term available-for-sale securities | 5,855,000 | [2] |  | 5,855,000 | [2] |  | 3,886,000 | [2]
Long-term available-for-sale securities | $ 0 | [2] |  | $ 0 | [2] |  | $ 0 | [2]
[1] | At June 30, 2013, municipal securities consisted of an 82/11/7 percent split between holdings in short-term municipal security funds, municipal revenue bonds and municipal general obligation bonds, respectively. At December 31, 2012, municipal securities consisted of an 82/12/6 split between holdings in short-term municipal security funds, municipal revenue bonds and municipal general obligation bonds, respectively. The underlying credit rating of the municipal securities at June 30, 2013 and December 31, 2012 were A+, A1 or better as defined by S&P 500 and Moody’s, respectively.
[2] | Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.
[3] | Amounts include short-term municipal security funds that do not have a set maturity date. The aggregate fair value of short-term municipal securities was $42.1 million and $26.1 million as of June 30, 2013, and December 31, 2012, respectively.

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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 + Details
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- Definition The net amount of gross unrealized gains (losses) for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 + Details
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- Definition Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 15D -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 15E -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 15C -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8 -Footnote 2 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 8, 9, 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount of gain (loss) recognized in earnings, arising from assets measured at fair value on a recurring basis using unobservable inputs (level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition Amount of purchases, sales, issues, and settlements (net) which have taken place in relation to assets measured at fair value on a recurring basis using unobservable inputs (level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents contracts related to the exchange of different currencies, including foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into and existing as of the balance sheet date. + References No definition available. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents contracts related to the exchange of different currencies, including foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into and existing as of the balance sheet date. + References No definition available. + Details
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- Definition Income derived from investments in debt and equity securities and on cash and cash equivalents. Interest income represents earnings which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. Dividend income represents a distribution of earnings to shareholders by investee companies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 14 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(a),(b)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph a, b -Article 5 + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date. + References No definition available. + Details
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